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larkspur 'Kestrel' | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

larkspur 'Kestrel'

Delphinium 'Kestrel'

★ RHS AGM

Genus: Delphinium
Family: Ranunculaceae

About this plant

'Kestrel' is a strong-growing upright perennial to 2m tall, with large, dark green leaves and semi-double, rich blue flowers to 6.5cm across, in spikes to 90cm long, with many side branches, flowering in early summer

Growing Information

Height

1-1.5 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

ClayLoamSandy

AcidAlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Poorly DrainedWell Drained

Aspect

West FacingSouth FacingEast Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in a fertile, well-drained soil in full sun; shelter from strong winds and stake well. Apply a balanced liquid every couple of weeks in the growing season. For best flower spikes thin shoots when 7cm high to leave a minimum of 2-3 shoots on young plants and 5-7 shoots on established plants

Pruning

Deadhead by cutting spent flower spikes back to small flowering side shoots. Cut down all growth to ground level after it has withered in autumn

Propagation

Propagate by taking pencil thick basal cuttings in early spring

Pests

Prone to slugs, snails, leaf miners and caterpillars

Diseases

May be affected by powdery mildews, crown rot and a virus

Garden Uses

Uses

Cottage InformalGround Cover

Planting Places

Outdoor

Season of Interest

SpringSummer

Size & Characteristics

Height

1-1.5 Metres

Spread

0.1-0.5 Metres

Habit

Climbing

Time to Full Height

Five To Ten Years